1. Hebei Key Lab of Power Plant Flue Gas Multi‐Pollutants Control, Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 P. R. China
2. Department of Power Engineering North China Electric Power University Baoding 071003 P. R. China
3. Department of Chemistry University of Bath Bath BA2 7AY UK
4. School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 P. R. China